Invalidate the Prayer - Advice to one who deliberately makes a praying person laugh and distracts him from his prayer by talking to him

There are some young people who deliberately make people who are
praying laugh, and distract them by talking. We would like you to
tellus some hadeeths on this topic, that will help us to advise them.
Is the hadeeth "Whoevermakes a praying person laugh has made a
thousand angels weep" a saheeh hadeeth?.
Praise be to Allaah.
Prayer is the most important symbol of Islam; Allah emphasized its
importance when He chose the heavens to be the place where He enjoined
it upon our Prophet Muhammad (blessings and peace of Allah be upon
him) during his ascent into heaven (Mi'raaj). And He also emphasized
its importance when He first enjoined it upon HisProphet Moosa (peace
be upon him), when He spoke to him alone on the right side of al-Toor,
and said to him (interpretation of the meaning): "Verily, I am Allaah!
Laa ilaaha illa Ana (none has the right to be worshipped but I), so
worship Me, and perform As-Salaah (Iqaamat-as-Salaah) for My
remembrance" [Ta-Ha 20:14].
He emphasized its importance when He made it the foundation and pillar
of faith. Whoever neglects it will be more neglectful of other duties,
and whoever prays regularly,it will be light and a protection for him
on the Day of Resurrection. Hence it is the main aspect of the
straight path and the one of the fundamentals of the truereligion, as
Allah says (interpretation of the meaning): "And they were commanded
not, but that they should worship Allaah, and worship none but Him
Alone (abstaining from ascribing partners to Him), and perform
As-Salaah (Iqaamat-as-Salaah) andgive Zakaah, and that is the right
religion" [al-Bayyinah 98:5].
If the Muslim recognizes the importance of prayer in the Islamic
religion and have respect in his heart for what Allah has enjoined of
honouring the symbols of Allah, as He says (interpretation of the
meaning): "Thus it is an obligation that mankind owes to Allaah]and
whosoever honours the Symbols of Allaah, then it is truly, from the
piety of the hearts" [al-Hajj 22:32], then he will realize that
distracting one who is praying and trying to make him laugh or moveor
speak is a kind of tampering with what is sacred, and there is the
fear that the one who does this will come under the heading of those
who mock the symbols of Islam, which is one of the causes of falling
into apostasy, Allah forbid. The Prophet(blessing and peace of Allah
be upon him) said: "If the one who passes in front of one who is
praying knew what (sin)he incurs, he would realize that waiting for
forty is better than passing in front of him." The narrator,
Abu'l-Nadr,said: I do not know whether he said forty days or months or
years. Narrated by al-Bukhaari (510) and Muslim (507). What level of
sin is incurred by the one whodeliberately distracts one who is
praying or tries to make him laugh by moving or speaking? There can be
no doubt that it is a grave sin.
Secondly:
The hadeeth mentioned in the question is not saheeh, and is not
narrated in the books of Sunnah and reports. Rather Imam Ahmad (may
Allah have mercy on him) said: There is no saheeh hadeeth about
laughing [i.e., in prayer].End quote.
Al-Tahqeeq fi Ahaadeeth al-Khilaaf, by Ibn al-'Jawzi, 1/198
Shaykh Ibn Jibreen (may Allah have mercy on him) was asked the
following question:
How sound is the hadeeth, "Whoever makes a praying person laugh has
made Allah weep"?
He replied:
The hadeeth with this wording is not saheeh, but there is no doubt
that if you are talking to one who is praying and making him hear
words until he starts to laugh and thus invalidates his prayer, you
are the cause of that. It is not permissible to make a praying person
laugh and the like. End quote.
http://ibn-jebreen.com/book.php?cat=8&book=205&toc=8327&page=7267&subid=24428
Shaykh Saalih al-Fawzaan (may Allah preserve him) was askedthe
following question:
Is it narrated in the Sunnah that "Whoever makes a believer laugh
whilst he is praying has made one thousand angels weep"? If it is
notsaheeh, then what is the sin that results from that?
He replied:
I do not know of any basis for this hadeeth, but it is not permissible
for the Muslim to distracthis brother whilst he is praying or to make
him confused about his prayer. If a person can prevent one who wants
to walk in front of him when he is praying, and there is a stern
warning concerning that, then it is more appropriate thatthe stern
warning should apply to the one who makes him laugh and distracts him
from praying. The one who passes in front of a person who is praying
may have a need to do that, but there is no need to joke and make
apraying person laugh, and to distract him from his prayer. So the one
who does that incurs a great deal of sin.